Baby stroller conversion unit



FIG. 1 is a top, front and side perspective view of a baby stroller conversion unit showing our new design, the opposite side is a mirror image of the side shown, and the rear view is plain and unornamented; and,

FIG. 2 is a top, front, and side perspective view of an alternative embodiment of the baby stroller conversion unit showing our new design, the opposite side is a mirror image of the side shown, and the rear view is plain and unornamented.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a baby stroller conversion unit, as shown and described. 